Haren's 2nd half woes are well documented, but it's not like he's ever turned into a below average option at any point. Even though he was one of my preseason favorites, Scherzer has been below average for much of this year. Worst case scenario this deal works out with Scherzer and Haren posting pretty much identical stats (they are remarkably similar pitchers), and all you really lose is Jennings. While I love Jennings long-term, the chances of a Braun/Posey-like breakout are slim and he's more likely to give you Adam Jones production at best. That's useful, but the downside is also significant for a guy who was hitting below .280 in the minors this year and similar production can likely be found on the ww. The name just won't be as sexy (Nyjer Morgan?).